(3SjchdhLjI GdJYdje hfXQjGJ GdJYde (B/ s - (3LGHQ YHOGdMejO LGHQs ([S.N] : (3OGQ GdcJGH GdMOjK , s, 1989)
Keywords: (3GdJYdjes; (3Yde GdfaSs; (3fXQjGJs; (3GdOhGaY GdfaSjIs; (3GdGOQGcs; (3GdJPcQs; (3GdfSjGfs